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Tektronix unveils 15GHz oscilloscope

Posted: 31 Jan 2005 ?? ?Print Version ?Bookmark and Share

Keywords:tektronix? oscilloscope? probe? pci-express? sataii?

Tektronix Inc.'s new product release is touted to be the world's fastest, most capable real-time oscilloscopes. The new members of the TDS6000 family of digital storage oscilloscopes (DSO) are the 12GHz TDS6124C and the 15GHz TDS6154C.

Also announced is the P7313 Z-Active low-loading probe that will facilitate designs in the computing, communications and consumer electronics industries based on second-generation PCI-Express, SATAIII and double XAUI standards.

"Our customers have been telling us that they want high bandwidth, fast rise times, long record length and comprehensive support for next generation serial standards," shared Colin Shepard, VP for the company's Performance Oscilloscopes. "The combination of the new TDS6000C oscilloscopes and the Z-Active P7313 low-loading probe provides customers with uncompromised performance; the fastest, most capable, and most complete design and test instrumentation giving engineers working on high-speed serial data applications a superior solution in every way."

Based on third-generation SiGe ICs developed in partnership with IBM, the new oscilloscopes promise to deliver the highest bandwidth, longest record length and timing resolution, lowest noise floor, and the most complete analysis capabilities.

"IBM and Tektronix both have a rich heritage of technology excellence," commented David Harame, director of enablement and IBM fellow, Systems and Technology Group, IBM. "The companies have worked closely for eight years to optimize SiGe technology for test and measurement applications. The results of this work are the highest performing ASICs in the test and measurement industry that appear in the TDS6124C and TDS6154C DSOs and the P7313 probe."

Capturing the fifth harmonic

The press release claims that the new TDS6154C is the only oscilloscope able to capture the fifth harmonic of the highest frequency pattern for next-generation serial standards such as 5Gbps to 6.25Gbps second-generation PCI-Express, 6Gbps SATA III, and 6.25Gbps double XAUI. The TDS6154C is also said to be the only oscilloscope able to capture the critical third harmonic of a 10Gbps signal.

The TDS6124C provides 12GHz true analog bandwidth and user-selectable DSP for channel-to-channel and unit-to-unit matching; while the TDS6154C includes user-selectable DSP for channel-to-channel and unit-to-unit matching plus bandwidth extension to 15GHz. The TDS6154C is capable of measuring rise/fall times of 30ps (typical) with accuracy to within 5 percent (20/80 percent rise time).

Both the TDS6124C and TDS6154C provide 40GSps sample rate on two channels simultaneously and up to 64M optional record length on two channels (2M on four channels standard). According to Tek, this equates to the longest time window of 1.6ms at full bandwidth and 25ps sample interval. The TDS6000C family provides a random jitter noise floor of 420fs rms (typical) for critical jitter measurements, lower than any competing instruments at comparable bandwidth, added the company.

Z-Active probe

The SiGe Z-Active probing architecture of the new P7313 offers high speed (>12.5 true bandwidth, typical), high DC impedance, fast rise time (25ps 20/80 percent), and the stable high frequency loading of Z0 probes to provide high bandwidth, flat frequency response, low-loading

and low noise differential for high-speed circuit designers. Detachable Tip-Clip Assemblies for the P7313 make it possible to replace a tip for a fraction of the cost formerly associated with such hardware changes, stated the press release. Moreover, the Tip-Clip Assemblies are interchangeable depending on the connectivity needs, providing a large degree of flexibility for using the probe.

The Pinpoint Trigger System in the TDS6000C family provides advanced serial pattern triggering up to 3.125Gbps in the new TDS6124C and TDS6154C. According to the company, this system is the world's only complete A/B triggering and provides glitch/width triggering down to 100ps.

In addition, a new option provides oscilloscope 8b/10b protocol triggering and decoding with which designers can trigger on four consecutive 10b symbols or defined errors. Tek explained that this enables incoming data to be triggered on in real-time without post processing, enabling designers to actually trigger on a fault rather than just hoping to find it through repeated searches.




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